Add 49/45 and 80/40
1st number: 1 4/45, 2nd number: 2 0/40
49/45 + 80/40 is 139/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
49/45 = 49 × 8/45 × 8 = 392/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
80/40 = 80 × 9/40 × 9 = 720/360 - Add the two like fractions:
392/360 + 720/360 = 392 + 720/360 = 1112/360 - 1112/360 simplified gives 139/45
- So, 49/45 + 80/40 = 139/45
In mixed form: 34/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/45+80/40 49/90+80/40